Stroll into a 76,000-square-foot general store in the community of Wall where the smell of homemade doughnuts mingles with new leather boots. Wall Drug Store’s free ice water and 5-cent coffee are its calling cards, but you’ll also find a cowboy-themed arcade and plenty of gifts for everyone on your list. Don’t leave without snapping a photo on the giant jackalope or grabbing a bumper sticker for your road-warrior cred.

Step into a golden-hued castle where everything is corny. Each year, murals made from naturally colored corn, other grains and native grasses decorate this palace in Mitchell. Take in the a-maize-ing creations as you snap photos of the corn-clad walls depicting animals, celebrities and South Dakota landscapes, and gaze up at the onion-shaped domes that add a regal touch to the agriculture-themed architecture.

Announced by a giant buffalo statue, Al’s Oasis is a Missouri River must-stop for road-weary travelers. This nostalgic restaurant and frontier trading post has been welcoming visitors to the Oacoma and Chamberlain area since 1919. Head inside to bite into a juicy bison burger, snag a cinnamon-sprinkled apple pie with a big scoop of vanilla ice cream, or sip on 5-cent coffee before browsing the gift shops for quirky souvenirs.

Giant metal sculptures rise from the South Dakota prairie like something out of a dream. At Porter Sculpture Park south of Montrose, you’ll wander past larger-than-life art, including a 60-foot bull’s head that greets you from Interstate 90. Created by local artist Wayne Porter, this offbeat attraction winds you through an outdoor gallery of 60-plus dragons, butterflies, flowers, a giant horse and more.

As you cruise through the premier hunting destination of Huron, you’ll spot it — an absurdly enormous ring-necked pheasant — proudly perched atop a building. Snap a picture with this kooky and colorful bird, which stands at a whopping 28 feet tall and weighs in at 22 tons. Climb up the wooden platform built for the perfect angle and get your camera ready.

Ever wonder what it’s like to walk inside a fairy tale? Aberdeen's Storybook Land brings nursery rhymes to life with whimsical statues and rides, from Humpty Dumpty’s roller coaster to a classic carousel. Hop on the express train and chug through the entire park past Paul Bunyan and Yogi Bear or skip along the yellow-brick road in the Land of Oz and say hi to Dorothy, Scarecrow and Tin Man. But the best part? Admission is free!

Get ready to climb onto the backs of towering dinosaurs at this fun-filled Rapid City park, where hulking Apatosaurus, T. rex and triceratops keep watch over the town below. Dating back to 1936, the park's prehistoric sculptures offer the best selfies with the skyline (especially at sunset!). The kiddos can slide, climb and conquer these dinos all day long at this roaring Jurassic adventure.

Travel back in time when you visit the Petrified Wood Park in Lemmon. Completed in 1932, the park's jagged, stone-like formations were all built from petrified wood and petrified dinosaur and mammoth bones. Explore towering cones, a wishing well and a 300-ton royal castle. As you wander, keep an eye out for fossils of dinosaurs, mammoths and snakes scattered throughout this completely unique landscape.

Slither through a world of scaly wonders at Reptile Gardens, home to the world’s largest reptile collection. From alligators lounging in the sun to cobras coiled and alert, this educational garden in Rapid City will wow any animal lover. Take in lush flower beds and snap pictures of free-roaming frogs and lizards among the plants in the Safari Room. If you're feeling brave, head to the Mezzanine to meet the most venomous snake on earth.

Stroll down the dusty streets of 1880 Town west of Murdo, where you’ll feel like you’ve stepped into a rootin’ tootin’ Western movie. Old-timey buildings and artifacts from the past bring you back to a world where cowboys ruled and smoke-billowing trains chugged along the plains. Rent period-accurate costumes and wander to the saloon, peek into the sheriff’s office and get a pic behind bars, or check out “Dances With Wolves” memorabilia.

Gravity? Forget about it! At the Cosmos Mystery Area, south of Rapid City, nothing behaves as it should. Feel the tilt of the earth beneath your feet, watch water flow uphill, and shrink or grow without moving a step. This trippy roadside stop will mess with your senses in the best way. Prepare to have your brain — and balance — challenged as you explore the mysteries of this strange, mind-bending spot.

Head to the northern Black Hills to stand in the heart of America! The National Geodetic Survey designated Belle Fourche as the town closest to the exact center of the nation, and this monument marks the approximate spot (since the actual location is on private farmland about 30 minutes away). Snap a selfie by the iconic flag-lined compass rose — made of South Dakota granite — and dive deeper into the area's fascinating history at the visitor center and Tri-State Museum.